Wow would love to see the internal when you have a chance. What type gains have you seen innreference of the power band. To date their aren't any arrows running locally so im clueless with its performance stock or modded. Im familar with the OS line been running Os for many years just recently swapped into nova line.

I modded an Arrow recently, waiting on feedback from him. I was impressed with the motor, thinking about possibly being a dealer for them.

Rex

When doing the clean-up, I found that the tank pressure tube had rubbed the flywheel and put a hole in it.
No wonder she got hot.
Thanks James, they showed up today.

Appreciate the business bro..You should be set on Arrows for at least 18 months..

So I now have 2 Arrow .21 engines. 1 in a Agama buggy using 30% nitro 11% oil Byrons, 7.0 Carb Insert, and silver + copper head shims. Using a Jammin JP3 tuned pipe.

I have another Arrow in a Hot Bodies D8T, 30% nitro 11% oil Byrons, 8.0 Carb Insert, and silver + copper head shims. Using a Precirotate MP1 tuned pipe.

Both engines have a little over a gallon in them. SHOULD I LOSE ANY OF THE HEAD SHIMS? WHAT ARE YOUR THOUGHTS ON THE CARB INSERTS?

Thanks ahead of time for your help with this.

Thanks for all the Pm's regarding the motor sounds like you guys have a solid motor at reasonable price tag.

You could even go to a 6.5 in the buggy and would still have plenty of poke i found the 7 in my old agama to much and truggy i've only ran a 7 and it's got plenty of talk and top end and fuel economy is great with both

Thanks for the response. What do you think about the head shims.

I have 2 arrows, the one in my buggy had a jp2 and the one in my truggy has a jp4. Im run byrons 30% and id p3 plugs. I can't seem to get any run time out of them. I Getty close to 8 min. Does anybody get 10 min out of these engines? I need a solution, there is no way I can compete with these engines in a main where I have to pit more than the next driver. Help!

The original VZ was designed to run a 8mm and 9mm venturi. The real question you have to ask yourself, does running a smaller venturi mean you're on the gas more? Driving WOT on a smaller venturi burns more gas than learning throttle control on a larger venturi. The tuning window also closes on smaller venturis... So if you tune in the cold dewy morning, by hot and dry afternoon, you'll have to retune.

Did you install the extra .1 brass shim the engine came with? You must run one .1 brass and one .2 aluminum shim no matter what.

Here's your problem. These pipes are fuel hogs.

How much time on the engine? and which Byron 30% is it a 11% oil or 9% oil?
Clutch setup?????

As great as Byrons is, it is not a fuel associated with great run times. I am speaking from experience having run 6 different fuel over the last 2 years looking for my perfect match..Byrons 30/9 and 30/11 are both wonderful fuel for performance and engine protection as well as consistency but once finding a fuel that was more aggressive while still offering all the smae things as Byrons my run times per tank with everything else being identical have increased up to 2 minutes in each vehicle with every engine I own..Just an FYI

Byrons fuel coupled with JP pipes = serious deficits in your run times

Yes. I am running one brass and one aluminum on both engines. Do you know what size the silver carb insert that comes with the Arrow is. The pipes are in question. The MP1 is pretty good, but the Jp3 is suspect. I love that Jp3, but is sucks on gas.

Im running the 11% abs i'm using a 3 shoe setup. Ofna flywheel with the losi steel shoes

I would get a re10 or re11 pipe and get a huge increase in run times. jp pipe eats gas. alpha 0801 pipe is good too. i got 10mins easy with buggy. and throttle controll is a must to a smoother finger will gain you run times too